Construction method of deep foundation pit steel sheet pile and anchor cable supporting system
A technology of anchor cable support and construction method, which is applied in the direction of sheet pile wall, foundation structure engineering, excavation, etc., can solve the problems of reducing the anti-seepage performance of steel sheet piles, damage of steel sheet piles, and easily hindering the recovery of steel sheet piles, etc., to achieve improvement Anti-seepage performance, improving stability, ensuring efficiency and quality
Active Publication Date: 2022-02-15
广东建基基础工程有限公司
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Problems solved by technology
[0004] In view of the related technologies mentioned above, the inventor believes that installing the anchor body directly on the steel sheet pile will cause certain damage to the steel sheet pile, which will easily reduce the anti-seepage performance of the steel sheet pile, and when the construction personnel prepare to recycle the steel sheet pile When the cable rod body is installed, it is easy to hinder the recovery of the steel sheet pile
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[0039] The following is attached Figure 1-4 The application is described in further detail.
[0040] The embodiment of the present application discloses a construction method of a steel sheet pile plus anchor cable support system in a deep foundation pit. refer to figure 1 , the construction method of the deep foundation pit steel sheet pile plus anchor cable support system includes the following construction steps:
[0041] S1. The operator first cleans the site and removes obstacles on the site, then the operator uses the construction machinery to level the site, and finally the operator positions and lays out the line on the site that has been leveled according to the drawings;
[0042] S2. Operators excavate guide trenches along the design route, and build fences and supports to prevent other personnel from destroying the site;
[0043] S3. According to the positioning of the anchor cable 83, the operator uses mechanical equipment to drive the connector 2 into the soil...
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The invention discloses a construction method for a deep foundation pit steel sheet pile and anchor cable supporting system, and belongs to the field of deep foundation pit supporting. The construction method comprises the following construction steps that S1, a site is leveled, and positioning and paying-off are conducted; S2, a guide ditch is excavated, and a fence support is built; S3, connecting pieces are sequentially driven into a soil layer; S4, steel sheet piles are sequentially driven into the soil layer according to the positions of the connecting pieces; S5, a steel crown beam is mounted at the top of each steel sheet pile; S6, earth excavation is conducted in a layered mode, and after excavation is conducted to the designed depth, anchor cable construction is conducted through the connecting pieces; and S7, the adjacent steel sheet piles are fixed through the connecting beams, and overall stress of the steel sheet piles is guaranteed. Each connecting piece comprises a positioning plate and a mounting plate fixedly connected to the positioning plate, and a mounting groove used for being matched with a locking opening of the steel sheet pile in an inserted mode is formed in the mounting plate. The method has the effect of conveniently recycling steel sheet piles.
Description
technical field [0001] The application relates to the technical field of deep foundation pit support, in particular to a construction method of a steel sheet pile plus anchor cable support system for deep foundation pits. Background technique [0002] At present, with the emergence of high-rise buildings, construction personnel have more requirements for foundation pit engineering, and foundation pit protection in foundation pit engineering is the top priority. There are many types of common foundation pit protection structures, such as stirring pile support, underground diaphragm wall support, soil nail wall support, bored cast-in-place pile support, etc. The above support methods are due to large material costs and It cannot be recycled, so some deep foundation pits are supported by steel sheet piles. [0003] In the related art, the Chinese invention patent application whose publication number is CN102817364A discloses the construction method of the steel sheet pile plus...
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IPC IPC(8): E02D17/04E02D5/04E02D5/08E02D19/18E02D5/74
CPCE02D17/04E02D5/04E02D5/08E02D19/18E02D5/74
Inventor 陈刚卢沛盈鲁松陈科
Owner 广东建基基础工程有限公司